Patent US2958240A successfully refreshed from Google Patents.
US2958240A
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US
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Method of grinding reliefs on cutters
Assignee: North American Products Corp
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Filing: 1957-08-16
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Granted: 1960-11-01
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Expires: 1977-08-16
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Segal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:52
CPC Classifications
B; B23; B23D; B23D63/00; B23D63/08; B23D63/12; B23D63/14; B23D63/18; B24; B24B; B24B3/00; B24B3/02; B24B3/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |